Problems from Spotify Challenge 2011

Name
Fastest
Shortest
Authors
Full Solves
Ratio
Difficulty
Languages
All Just A Dream0.0224875657776%5.4Mediumen
Cat Coat Colors0.00114034325875%6.0Harden
Imperial Measurement0.001471412129692%2.5Easyen
Peer Streaming0.041300332164%6.6Harden
Playlist0.3012511034948%6.6Harden
Primary Register0.00801212110691%2.4Easyen
Square Pie0.071580845667%8.3Harden
Wheel Game0.00127502652%7.4Harden